Patents
Sitemap › G01 - Measuring; Testing › G01S - Radio direction-finding; Radio navigation; Determining distance or velocity by use of radio waves; Locating or presence-detecting by use of the reflection or reradiation of radio waves; Analogous arrangements using other waves › G01S 1 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
Patents for G01S 1 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith (15,825)
11/2000
11/21/2000US6151551 Method and apparatus for generating an indication of loss of positioning integrity in emergency call systems
11/21/2000US6151353 Pre-acquisition frequency offset removal in a GPS receiver
11/21/2000US6150980 Method and apparatus for determining time for GPS receivers
11/21/2000CA2142844C Apparatus and method for providing synchronization of base-stations in a communication system
11/16/2000WO2000069187A1 Gps assistance data delivery method and system
11/16/2000WO2000068770A1 High-density removable expansion module having i/o and second-level removable expansion memory
11/15/2000EP1052786A1 Receiver for pseudo-noise signals from satellite radio-navigation systems
11/15/2000EP1051810A1 Receiver for ds-cdma signals in satellite navigation systems
11/15/2000EP1051638A1 Reducing cross-interference in a combined gps receiver and communication system
11/15/2000EP1051637A1 Receiver for ds-cdma signals
11/15/2000EP0920642B1 3d ultrasound recording device
11/14/2000US6147641 Process for the autonomous reduction of acquisition and tracking thresholds of carriers received in orbit
11/09/2000WO2000041403B1 Calibration for wireless location system
11/07/2000US6144918 Navigation data processing with filtering for refined position determination
11/07/2000US6144338 Predictive drop and load algorithm for an object-based geographical information system
11/07/2000CA2238138C Method for verifying the location of an array of detectors
11/02/2000WO2000065751A1 Apparatus for computing gps correlations in parallel
11/02/2000WO2000065367A1 Method and apparatus for locating and providing services to mobile devices
11/02/2000WO2000065308A1 Mobile satellite-controlled navigation system
11/02/2000WO2000041402A3 A signal collection system
11/02/2000EP1048959A2 GPS Receiver
11/02/2000EP1047955A1 Method and device for determining measuring periods for satellite measurement of points at least partially surrounded by visual obstacles
10/2000
10/31/2000US6141570 System and method for conserving battery energy in a wireless telephone with an integral global positioning system
10/31/2000US6141371 Jamming suppression of spread spectrum antenna/receiver systems
10/31/2000US6140964 Wireless communication system and method and system for detection of position of radio mobile station
10/26/2000WO2000063646A1 Autonomous satellite navigation system
10/26/2000DE19914380A1 Communication and search system for divers has pressure-proof watertight transceiver with alarm
10/26/2000DE19913075A1 Verfahren und Vorrichtung zum Bestimmen des auf eine Zeitbasis bezogenen Auftrittszeitpunkt eines Informationsworts in einem codierten Signal und Verfahren und Vorrichtung zum Bestimmen der Laufzeit eines codierten Signals von einem Sender zu einem Empfänger Method and apparatus for determining the time base related to a time of occurrence of an information word into an encoded signal and method and device for determining the run time of a coded signal from a transmitter to a receiver
10/25/2000EP1046924A2 Positioning system
10/25/2000EP1046145A1 Improvements in and relating to emitters
10/24/2000CA2162926C Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing
10/19/2000DE19918648A1 Navigation using global positioning system, has error correction via radio transmission to increase accuracy of satellite navigation
10/18/2000CN1270700A Multi-channel digital receiver for GPS
10/18/2000CN1270461A Short distance communication apparatus on board
10/17/2000US6134484 Method and apparatus for maintaining the integrity of spacecraft based time and position using GPS
10/17/2000US6134483 Method and apparatus for efficient GPS assistance in a communication system
10/17/2000US6134183 Under-ice surveillance buoy
10/17/2000US6133874 Method and apparatus for acquiring satellite positioning system signals
10/17/2000US6133873 Method and apparatus for adaptively processing GPS signals in a GPS receiver
10/17/2000US6133871 GPS receiver having power management
10/12/2000WO2000060371A1 Fine positioning of a user terminal in a satellite communications system
10/12/2000DE10015258A1 GPS receiver, which receives radio signals of GPS satellite and determines its position from received signals, completes frame synchronization process between satellites so as to receive synchronization of satellite data
10/11/2000EP1043599A2 Position measurement apparatus that detects location by receiving external signals
10/11/2000EP1042686A2 Improvements relating to position determinations
10/10/2000US6131067 Client-server based remote locator device
10/10/2000US6130908 Code multipath analyzer using weighted or modified correlations
10/10/2000US6130642 Method and system to improve GPS navigation
10/05/2000WO2000058750A1 Method and apparatus for locating gps equipped wireless devices operating in analog mode
10/05/2000WO2000058748A1 Systems and methods for resolving gps pseudo-range ambiguity
10/05/2000WO2000058746A1 Signal detector employing correlation analysis of non-uniform and disjoint sample segments
10/05/2000WO2000058745A1 Signal detector employing coherent integration
10/05/2000WO2000058744A1 Position finding
10/04/2000EP1041397A2 Method and apparatus to determine the arrival time of an information word in a coded signal and method and apparatus to determine the propagation time of a coded signal from a transmitter to a receiver
10/03/2000US6128501 Mobile position determination with error correction utilizing cellular networks
10/03/2000US6128468 Satellite communications terminal location system and method
10/03/2000US6127970 Coupled real time emulation method for positioning and location system
09/2000
09/28/2000WO2000057203A1 Method and apparatus for satellite positioning system (sps) time measurement
09/28/2000WO2000057133A1 Calibration of optical transmitter for position measurement systems
09/28/2000WO2000057132A1 Method for creating a user-selectable coordinate frame
09/28/2000WO2000057131A1 Method for establishing a coordinate system
09/28/2000CA2366730A1 Calibration of optical transmitter for position measurement systems
09/28/2000CA2366720A1 Method for creating a user-selectable coordinate frame
09/28/2000CA2366711A1 Method for establishing a coordinate system
09/27/2000EP1038361A1 Combined gps and wide bandwidth radiotelephone terminals and methods
09/27/2000EP1038187A1 Gyrocompassing by intermittent gps interferometry
09/27/2000EP1038158A1 Rotating head optical transmitter for position measurement system
09/26/2000US6125325 GPS receiver with cross-track hold
09/26/2000US6125135 System and method for demodulating global positioning system signals
09/21/2000WO2000041404A3 Efficient demodulation techniques for a wireless location system
09/21/2000WO2000041403A3 Calibration for wireless location system
09/21/2000WO2000041319A3 Multiple demodulation protocols for a wireless location system
09/19/2000US6122506 GSM cellular telephone and GPS receiver combination
09/19/2000US6122261 Hitless ultra small aperture terminal satellite communication network
09/19/2000US6121926 Radio geo-location system with advanced first received wavefront arrival determination
09/19/2000US6121923 Fixed site and satellite data-aided GPS signal acquisition method and system
09/19/2000US6121922 Tracking system using miniaturized concealable communications module
09/19/2000US6121921 Position detection apparatus
09/14/2000WO2000054448A1 Global positioning system receiver for monitoring the satellite transmissions and for reducing the effects of multipath error
09/14/2000WO2000053271A1 Golf navigation device
09/14/2000DE19937268A1 Communication terminal with mobile telephone and GPS reception module has mobile telephone with data transmission unit operating on fixed radio frequency for wireless transfer from item data determined in the GPS reception module
09/14/2000DE19907235A1 GPS-Navigationssystem für Raumfahrtanwendungen GPS Navigation System for Space Applications
09/13/2000EP1034818A1 Golf navigation apparatus
09/13/2000EP1034586A1 Microchip laser with modulated pumping
09/13/2000EP1034439A1 Method and device for reception processing of a gps satellite l2 signal
09/13/2000CN1266192A Vehicle/ship locating tracking navigation mobile communication system
09/12/2000US6118977 Telecommunications-assisted satellite positioning system
09/12/2000US6118808 GPS receiver with efficient signal acquisition
09/12/2000US6118070 Insulated conductor pair and a guide cable using the same
09/08/2000WO2000052494A1 Sensor system
09/08/2000WO2000037960A3 Vehicle system incorporating voice and data communication
09/06/2000EP1033584A2 Navigational warning system for fishing vessels
09/06/2000EP1032985A1 Low-power satellite-based geopositioning system
09/06/2000CN1056237C Microwave remote-sensing imaging instrument for takeoff and landing of aircrarft
09/05/2000US6115599 Directed retry method for use in a wireless location system
09/05/2000US6114992 Satellite acquisition and measurement system and process
09/05/2000US6114991 Auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite
09/05/2000US6114989 GPS data recorder and playback system
09/05/2000US6114988 GPS receiver fault detection method and system
09/05/2000US6113504 Golf ball locator
08/2000
08/31/2000WO2000050917A1 Vehicle navigation system with correction for selective availability
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